Improvement in middlings-purifiers



G. W. DELLINGER.

MiddIings-Purers.

-No.148,876. Patented March 24,1374.

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WITNESSES v c 746%/ @9W .ATTOBNEYS.

UNITED STETEs PATENT @Erica GEORGE W. DELLINGER, OF RIPON, WISCONSIN.

IMPROVEMENT IN MIDDLINGSPURIFIERS.

Specification forming part of Letters Patent No. 14,S76, dated March 24, 1874; application tiled December 13, 1373.

To all whom t may concern:

Be it known that I, GEORGE W. BELLIN- GER, of Ripon, in the county of Fond du Lac and State of Wisconsin, have invented new and Improved Flour and Middlings Purifiers, of which the following is a specification:

The invention will irst be fully described, and then pointed out in the claim.

Figure l is a sectional elevation of my improved apparatus, and Fig. 2 is a top view.

Similar letters of reference indicate corresponding parts.

A and B represent a couple of circular horizontal sieves, screens, or bolts, arranged one above another, on a vertical shaft, O, within a suitable case, D, for screening, sifting, or bolting the iiour or middlings to be treated by a quick forward-and-backward oscillating n10- tion, imparted by the arm E, connecting-rod F, and crank-shaft G, or any other suitable means, the said lourk or middlings being discharged upon the upper screen or sieve at the center, say from a hopper, H,into which it is discharged by a spout,-I. The flour or middlings, falling through the sieve, drops onto the iiat Jfunnel J ,to be delivered upon the center of the lower sieve by passing through its central hole, while the coarsc'matters, not passing through the sieve, escape oft' the periphery into the little annular trough K, in which they are con ducted to the delivery-spout L. The lower sieve is iincr than the upper one, but is the same in other respects, and delivers the coarse matters which do not pass through it by its annular trough K to the discharge-spout. Above the screens the case is funnel-shaped, and ter1ni nates at a fau, M, by which the dust and light matters are sucked up from the space below, and delivered. The upper sieve is a little smaller than the lower one, to afford ample space for the air loaded with the particles from below to pass up.

These screens will be self-cleaning, in consequence of the lively action of the iiour or iniddlin gs on them, and thus the brushes, knockers, &c., used with ordinary middlingscleaners and bolts will not be needed.

rEhe power needed for driving the machine will be greatly lessened in consequence ot' the whole weight of the screens or sieves being borne on the step of the upright shaft.

Having thus described my invention, I claim as new and desire to secure'by Letters Iatent* The combination, with the suction-fan M and case K, of the two oscillating sieves A B, the top one made smaller than the lower'one, to allow the upward passage of light particles of matter from the lower sieve, as set forth.

GEORGE W. DELLINGER.

Witnesses:

S. E. REED, E. MAPEs. 

